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Finding the Fourth Proportional to 18,475.70, 27,713.54 and 11,070.88

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Solution

The fourth proportional to 18,475.70, 27,713.54 and 11,070.88 is: 16,606.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,475.70 : 27,713.54 = 11,070.88 : x
  2. Step 2: Convert to fraction form
    18,475.70/27,713.54 = 11,070.88/x
  3. Step 3: Cross multiply
    18,475.70x = 27,713.54 × 11,070.88
  4. Step 4: Simplify right side
    18,475.70x = 306,813,234.11
  5. Step 5: Solve for x
    x = 306,813,234.11/18,475.70
  6. Step 6: Final answer
    x = 16,606.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.